These properties allow configuring the SD/OE pin as described in the
datasheet.
Signed-off-by: Sean Anderson <sean.anderson@xxxxxxxx>
---
Changes in v2:
- Rename idt,sd-active-high to idt,output-enable-active-high
- Add idt,enable-shutdown
.../bindings/clock/idt,versaclock5.yaml | 33 +++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
index 28675b0b80f1..79d67fad5284 100644
--- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
+++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
@@ -30,6 +30,22 @@ description: |
3 -- OUT3
4 -- OUT4
+ The idt,enable-shutdown and idt,output-enable-active-high properties
+ correspond to the SH and SP bits of the Primary Source and Shutdown
+ Register, respectively. Their behavior is summarized by the following
+ table:
+
+ SH SP SD/OE Output
+ == == ===== ========
+ 0 0 Low Active
+ 0 0 High Inactive
+ 0 1 Low Inactive
+ 0 1 High Active
+ 1 0 Low Active
+ 1 0 High Shutdown
+ 1 1 Low Inactive
+ 1 1 High Shutdown
+
maintainers:
- Luca Ceresoli <luca@xxxxxxxxxxxxxxxx>
@@ -64,6 +80,23 @@ properties:
maximum: 22760
description: Optional load capacitor for XTAL1 and XTAL2
+ idt,enable-shutdown:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ Enable the shutdown function when the SD/OE pin is high. This
+ corresponds to setting the SH bit of the Primary Source and
+ Shutdown Register. If this property is set, it takes precedence
+ over the usual enable/disable semantics of the SD/OE pin.
+
+ idt,output-enable-active-high:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ This enables output when the SD/OE pin is high, and disables
+ output when the SD/OE pin is low. This corresponds to setting the
+ SP bit of the Primary Source and Shutdown Register. If this
+ property is not present, then the SD/OE pin has the opposite
+ polarity (enabled when low, disabled when high).
+
patternProperties:
"^OUT[1-4]$":
type: object
--
2.25.1
